/*! @source http://purl.eligrey.com/github/Blob.js/blob/master/Blob.js */
(function(view) {
  view.URL = view.URL || view.webkitURL;
  if (view.Blob && view.URL) {
    try {
      new Blob();
      return;
      // eslint-disable-next-line no-empty
    } catch (e) {}
  }
  var BlobBuilder =
    view.BlobBuilder ||
    view.WebKitBlobBuilder ||
    view.MozBlobBuilder ||
    (function(view) {
      var get_class = function(object) {
          return Object.prototype.toString
            .call(object)
            .match(/^\[object\s(.*)\]$/)[1];
        },
        FakeBlobBuilder = function BlobBuilder() {
          this.data = [];
        },
        FakeBlob = function Blob(data, type, encoding) {
          this.data = data;
          this.size = data.length;
          this.type = type;
          this.encoding = encoding;
        },
        FBB_proto = FakeBlobBuilder.prototype,
        FB_proto = FakeBlob.prototype,
        FileReaderSync = view.FileReaderSync,
        FileException = function(type) {
          this.code = this[(this.name = type)];
        },
        file_ex_codes = (
          "NOT_FOUND_ERR SECURITY_ERR ABORT_ERR NOT_READABLE_ERR ENCODING_ERR " +
          "NO_MODIFICATION_ALLOWED_ERR INVALID_STATE_ERR SYNTAX_ERR"
        ).split(" "),
        file_ex_code = file_ex_codes.length,
        real_URL = view.URL || view.webkitURL || view,
        real_create_object_URL = real_URL.createObjectURL,
        real_revoke_object_URL = real_URL.revokeObjectURL,
        URL = real_URL,
        btoa = view.btoa,
        atob = view.atob,
        ArrayBuffer = view.ArrayBuffer,
        Uint8Array = view.Uint8Array;
      FakeBlob.fake = FB_proto.fake = true;
      while (file_ex_code--) {
        FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1;
      }
      if (!real_URL.createObjectURL) {
        URL = view.URL = {};
      }
      URL.createObjectURL = function(blob) {
        var type = blob.type,
          data_URI_header;
        if (type === null) {
          type = "application/octet-stream";
        }
        if (blob instanceof FakeBlob) {
          data_URI_header = "data:" + type;
          if (blob.encoding === "base64") {
            return data_URI_header + ";base64," + blob.data;
          } else {
            if (blob.encoding === "URI") {
              return data_URI_header + "," + decodeURIComponent(blob.data);
            }
          }
          if (btoa) {
            return data_URI_header + ";base64," + btoa(blob.data);
          } else {
            return data_URI_header + "," + encodeURIComponent(blob.data);
          }
        } else {
          if (real_create_object_URL) {
            return real_create_object_URL.call(real_URL, blob);
          }
        }
      };
      URL.revokeObjectURL = function(object_URL) {
        if (object_URL.substring(0, 5) !== "data:" && real_revoke_object_URL) {
          real_revoke_object_URL.call(real_URL, object_URL);
        }
      };
      FBB_proto.append = function(data) {
        var bb = this.data;
        if (
          Uint8Array &&
          (data instanceof ArrayBuffer || data instanceof Uint8Array)
        ) {
          var str = "",
            buf = new Uint8Array(data),
            i = 0,
            buf_len = buf.length;
          for (; i < buf_len; i++) {
            str += String.fromCharCode(buf[i]);
          }
          bb.push(str);
        } else {
          if (get_class(data) === "Blob" || get_class(data) === "File") {
            if (FileReaderSync) {
              var fr = new FileReaderSync();
              bb.push(fr.readAsBinaryString(data));
            } else {
              throw new FileException("NOT_READABLE_ERR");
            }
          } else {
            if (data instanceof FakeBlob) {
              if (data.encoding === "base64" && atob) {
                bb.push(atob(data.data));
              } else {
                if (data.encoding === "URI") {
                  bb.push(decodeURIComponent(data.data));
                } else {
                  if (data.encoding === "raw") {
                    bb.push(data.data);
                  }
                }
              }
            } else {
              if (typeof data !== "string") {
                data += "";
              }
              bb.push(unescape(encodeURIComponent(data)));
            }
          }
        }
      };
      FBB_proto.getBlob = function(type) {
        if (!arguments.length) {
          type = null;
        }
        return new FakeBlob(this.data.join(""), type, "raw");
      };
      FBB_proto.toString = function() {
        return "[object BlobBuilder]";
      };
      FB_proto.slice = function(start, end, type) {
        var args = arguments.length;
        if (args < 3) {
          type = null;
        }
        return new FakeBlob(
          this.data.slice(start, args > 1 ? end : this.data.length),
          type,
          this.encoding
        );
      };
      FB_proto.toString = function() {
        return "[object Blob]";
      };
      FB_proto.close = function() {
        this.size = this.data.length = 0;
      };
      return FakeBlobBuilder;
    })(view);
  view.Blob = function Blob(blobParts, options) {
    var type = options ? options.type || "" : "";
    var builder = new BlobBuilder();
    if (blobParts) {
      for (var i = 0, len = blobParts.length; i < len; i++) {
        builder.append(blobParts[i]);
      }
    }
    return builder.getBlob(type);
  };
})(
  (typeof self !== "undefined" && self) ||
    (typeof window !== "undefined" && window) ||
    this.content ||
    this
);
